I'm considering having my roof replaced in advance of fitting Solar PV panels, and having new membrane, tiles, eaves ventilation, dry ventilated ridge, dry verge, fascias, soffits, guttering etc, and then fitting PIR board between and under the rafters to bring the insulation up to spec.
I have a 1971 Wimpey built 3 bedroom semi-detached with interlocking concrete double roman tiles. I understand that the extent of the repairs mean that building control approval is required, though some of the roofers I have approached either don't know this or don't seem to care.
The roofer I am dealing with at the moment has suggested that on the front elevation of my house (where my roof is on the right and my neighbours on the left with a chimney between us) he will not be able to double fix the tiles (BS 5534?) without installing a bonding gutter. I don't see why this is the case, but I assume it might be something to do with the tile interlock requiring them to be laid/fixed from right to left (ie toward my neighbours roof). Is this the case?
Also, my understanding is that a bonding gutter is intended for weathering the joint between two DIFFERENT roof coverings, but I would be replacing the existing double roman tiles like-for-like with double roman tiles, so I can't see why this would be necessary. Also, using bonding gutters requires disturbing my neighbours roof by crossing the party wall line between us, so I really, really don't want to do this.
Looking around my estate I cannot find a single instance where someone has replaced their roof and used a bonding gutter to do so.
Advice and opinions welcome
I have a 1971 Wimpey built 3 bedroom semi-detached with interlocking concrete double roman tiles. I understand that the extent of the repairs mean that building control approval is required, though some of the roofers I have approached either don't know this or don't seem to care.
The roofer I am dealing with at the moment has suggested that on the front elevation of my house (where my roof is on the right and my neighbours on the left with a chimney between us) he will not be able to double fix the tiles (BS 5534?) without installing a bonding gutter. I don't see why this is the case, but I assume it might be something to do with the tile interlock requiring them to be laid/fixed from right to left (ie toward my neighbours roof). Is this the case?
Also, my understanding is that a bonding gutter is intended for weathering the joint between two DIFFERENT roof coverings, but I would be replacing the existing double roman tiles like-for-like with double roman tiles, so I can't see why this would be necessary. Also, using bonding gutters requires disturbing my neighbours roof by crossing the party wall line between us, so I really, really don't want to do this.
Looking around my estate I cannot find a single instance where someone has replaced their roof and used a bonding gutter to do so.
Advice and opinions welcome